Adding IOCipher to our InformaCam and NoteCipher apps is already in the
works. There is already one app in the Play Store built with IOCipher: Gryphn Secure Messaging

We’ve recently done some heavy testing and bug fixing and this is ready for beta status. That means for many applications, it should be stable with reasonable performance. But its not done yet, and there are some known edge cases documented in our bug tracker which we aim to address in the next beta release: